CN109554815B - Circular weft knitting machine - Google Patents

Abstract

The invention relates to a circular weft knitting machine, which relates to the technical field of textile processing equipment and comprises a rack, a yarn supply mechanism arranged on the rack and a knitting mechanism arranged on the rack, wherein the knitting mechanism comprises a needle cylinder rotationally arranged on the rack, a plurality of knitting needles vertically arranged on the needle cylinder in a sliding manner and a driving piece for driving the needle cylinder to rotate, an auxiliary mechanism is arranged on the rack and comprises an air nozzle connected with the rack, a gas pipe communicated with the air nozzle and a positioning component connected with the air nozzle, and the air nozzle is opposite to one side, close to a hook, of a latch of each knitting needle. The invention has the effect of quickly opening the latch to facilitate the continuous thread to enter the hook for knitting and improving the working efficiency. The air tap ejects air flow to open the latch of the knitting needle, so that the hook of the knitting needle can conveniently hook the continuous connected yarn during operation, knitting is carried out, and the working efficiency is improved.

Description

A knitting circular weft knitting machine

technical field

The invention relates to the technical field of textile processing equipment, in particular to a knitting circular weft knitting machine.

Background technique

At present, knitting circular weft knitting machine (or called circular knitting machine), referred to as circular knitting machine, is a circular knitting machine that knits cotton yarn into a tubular cotton cloth. Because the circular knitting knitting machine has many loop-forming systems (referred to as the number of yarn feeding paths or looping paths in the enterprise, referred to as the number of loops), the rotation speed is high, the output is high, the pattern changes quickly, the fabric quality is good, the process is few, and the product is adaptable. .

Most of the needle cylinders used in circular knitting machines are of the insert type, which are used to place knitting needles. The role of the knitting needle is to complete the work from the yarn to the fabric.

1, the knitting needle 22 includes a needle body 221, a hook 223 integrally provided at one end of the needle body 221, and a latch 222 hinged on the needle body 221 opposite the hook 223, and the yarn passes through the opening of the hook 223 Enter into the knitting needle 22, and close the hook 223 through the needle tongue 222, so as to guide the yarn for knitting operation, and at the same time prevent the yarn from falling off during the knitting process. When the yarn breaks, the equipment will stop, and the operator needs to connect the yarn. After connecting the yarn, manually open the latch 222. When the knitting needle 22 is running, put the connected yarn into the hook 223 of the knitting needle 22. The latch 222 closes the opening of the hook 223 to perform knitting.

The above-mentioned prior art solutions have the following defects: However, the number of knitting needles is large and the interval is too dense, and it is difficult to manually open the latches, thus resulting in low work efficiency of the operator.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a knitting circular weft knitting machine, which can quickly open the needle latch to facilitate the connected thread to enter the hook for knitting and improve work efficiency.

The above-mentioned purpose of the present invention is achieved through the following technical solutions:

A knitting circular weft knitting machine includes a frame, a yarn supplying mechanism arranged on the frame, and a knitting mechanism arranged on the frame, the knitting mechanism comprising a needle cylinder rotatably arranged on the frame, a plurality of The knitting needle vertically slidingly arranged on the needle cylinder, and the driving member for driving the needle cylinder to rotate, an auxiliary mechanism is arranged on the frame, and the auxiliary mechanism includes an air nozzle connected with the frame, and an air nozzle connected with the air nozzle. An air delivery pipe, and a positioning part connected with an air nozzle, the air nozzle is opposite to the hook side of the latch of the knitting needle.

By adopting the above technical solution, the yarn supplying mechanism delivers the yarn, and the knitting needle knits the yarn in the process of sliding up and down. Since the equipment will stop when the yarn breaks, the operator needs to continue the yarn and open the latch to open the The opening of the hook allows the yarn to re-enter the hook of the knitting needle, but the knitting needle is too dense, and it is difficult to manually open the latch; therefore, the air nozzle is positioned by the positioning component, so that the air nozzle and the latch are close to the hook On the opposite side, the air nozzle sprays high-pressure air, and the air flow pushes the latch to open, which is convenient for the hook to hook the yarn for knitting when the knitting needle is moving, thereby reducing the difficulty of work and improving the efficiency of the operator's thread continuation.

The present invention is further provided as follows: the air nozzle is rotatably connected with the frame, an indicator plate is arranged on the frame, a scale is arranged on the indicator plate, and a pointer pointing to the scale is arranged on the air nozzle.

By adopting the above technical solution, the air nozzle is rotatably connected to the frame, so that the direction of the air nozzle of the air nozzle can be easily changed, so that the air nozzle is opposite to the knitting needle nearby, so as to expand the working range of the air nozzle and reduce the number of air nozzles. the number of uses and reduce costs.

The present invention is further provided that: the air nozzle is connected with a universal pipe, the universal pipe is connected with the frame, and the gas transmission pipe is sleeved on the universal pipe.

By adopting the above technical solution, the air nozzle is connected with a universal tube, which has the function of adjusting the direction, and at the same time, it is convenient to change the position of the air nozzle and expand the working range of the air nozzle. The operator's working space for thread continuation is increased, which is convenient for the operator to continue the yarn; at the same time, the air pipe is sleeved on the universal pipe, so as to facilitate the combing of the air pipe and avoid the friction between the air pipe and the ground or equipment and wear.

The present invention is further provided as follows: a sliding seat is arranged on the air nozzle, a sliding rail for sliding the sliding seat is arranged on the frame along its circumferential direction, a roller is rotatably connected to the sliding seat, and the roller is connected with the sliding seat. The rails are rolling connection.

By adopting the above technical solution, a sliding seat is arranged on the air nozzle, a roller is arranged on the sliding seat, and the roller is connected with the sliding rail in a rolling manner, and the air nozzle is moved to the relative position of the corresponding knitting needle through the sliding rail, and the air pipe conveys high-pressure gas to the air nozzle, The air jet from the air nozzle opens the latch of the knitting needle, which is convenient for the hook to hook the yarn for knitting when the knitting needle moves; the roller is used to reduce the sliding resistance of the sliding seat and the sliding rail, so that the operator can move the air nozzle .

The present invention is further provided that: a detection component is arranged on the frame, and the detection component includes a photoelectric sensor opposite to the yarn on one side of the knitting needle, a controller electrically connected to the photoelectric sensor, and a controller electrically connected to the controller. warning light.

By adopting the above technical solution, the photoelectric sensor is opposite to the yarn on one side of the knitting needle to detect the yarn. When the yarn is broken, the photoelectric sensor feeds back an electrical signal to the controller, and the controller controls the alarm light to light up, which is convenient The operator finds the disconnection position in time and performs the reconnection operation, shortens the time for finding the disconnection location, and improves the work efficiency of reconnection.

The present invention is further provided as follows: gear teeth are arranged on the surface of the sliding rail, the positioning component comprises a gear meshed with the gear teeth, a motor arranged on the sliding seat, and the output shaft of the motor is coaxially fixed with the gear, A handle is connected to the eccentric part of the gear.

By adopting the above technical solution, the motor drives the gear to rotate, and the gear meshes with the gear teeth on the slide rail, thereby driving the slide base to slide along the slide rail to the disconnected position to continue the line operation, thereby reducing the workload of the operator, and at the same time A handle is provided at the eccentric position of the gear, so that the operator can turn the handle to manually adjust the position of the air nozzle, improve the accuracy of the direction of the air nozzle, and quickly open the latch of the knitting needle.

The present invention further provides: a ring groove is opened on the side of the sliding rail away from the gear along the circumferential direction of the sliding rail, the roller is connected with the bottom surface of the ring groove in a rolling connection, a connecting rod is rotatably connected to the sliding seat, and a rotating part is provided with a connecting rod. An elastic piece, two ends of the elastic piece are respectively connected with the sliding seat and the connecting rod, and the roller and the end of the connecting rod which is far away from the sliding seat are rotatably connected.

By adopting the above technical solution, the connecting rod is rotated on the sliding seat, and the elastic piece is arranged at the rotating position of the connecting rod, and the two ends of the elastic piece are respectively connected with the sliding seat and the connecting rod, so that the connecting rod is closely attached to the ring groove under the action of elastic force When the connecting rod rotates, the distance between the circumferential surface of the roller and the bottom surface of the ring groove increases, so as to facilitate the disassembly of the slide.

The present invention is further provided that: a laser light is arranged on the air nozzle of the air nozzle.

By adopting the above technical solution, a laser light is arranged on the air nozzle of the air nozzle. When the air nozzle is aligned with the knitting needle, the air nozzle is rotated so that the beam of the laser light is opposite to the knitting needle, so as to improve the accuracy of the alignment of the air injection direction and improve the continuity of the thread. work efficiency.

The present invention is further provided that: the sliding seat is provided with a locking piece, the locking piece includes a clip rotatably connected with the sliding seat, and a bolt threadedly connected to the sliding seat through the clip, the clip is opposite to the roller One side is provided with a non-slip layer.

By adopting the above technical solution, a clip is rotated on the slide, an anti-skid layer is arranged on the opposite side of the clip and the roller, and the bolts pass through the clip and are threadedly connected to the slide, so that the anti-slip layer on the clip is pressed against the roller to prevent This locking roller prevents the air nozzle from loosening after positioning and affecting the accuracy of the airflow direction.

According to the present invention, a turntable is provided at one end of the air nozzle away from the knitting needle, a clamping slot is arranged at the bottom of the turntable, a clamping block is provided on the opposite side of the frame and the turntable, and the turntable is located on the bottom surface of the clamping slot. A rotating shaft is fixed, the rotating shaft penetrates into the clamping block and is slidably and rotatably connected with the clamping block, and the clamping block is engaged with the clamping slot.

By adopting the above technical solution, the end of the air nozzle away from the knitting needle is coaxially fixed to the turntable, the bottom of the turntable is provided with a card slot, the block on the frame is inserted and matched with the turntable, and the turntable is used to rotate the air nozzle. After the direction of the air nozzle is calibrated, Slide the turntable along the rotating shaft, so that the turntable is inserted and matched with the clamping block, so as to lock the turntable and prevent the air flow vibration from shifting the turntable and affecting the opening of the needle latch.

To sum up, the beneficial technical effects of the present invention are:

1. Air flow from the air nozzle makes the latch of the knitting needle open, so that the hook of the knitting needle can hook the continuous yarn during operation, so as to knit and improve the work efficiency;

2. Change the position of the air nozzle through the universal tube to expand the working range of the air nozzle. At the same time, when the air nozzle is moved away with the universal tube, the operator's working space for continuous threading increases, which is convenient for the operator to carry out the yarn operation. At the same time, the gas pipe is sleeved on the universal pipe, so as to facilitate the combing of the gas pipe and avoid the wear of the gas pipe and the ground or equipment;

3. The connecting rod is close to the bottom surface of the ring groove under the action of the elastic member, and cooperates with the gear to clamp the sliding rail, so as to improve the stability of the sliding seat; at the same time, the disassembly of the sliding seat is facilitated by the rotation of the connecting rod.

Description of drawings

Fig. 1 is the overall structure schematic diagram of knitting needle in the background technology;

2 is a schematic diagram of the overall structure of Embodiment 1;

Fig. 3 is the partial enlarged schematic diagram of A part in Fig. 2;

4 is an enlarged schematic view of a part of the structure of the first embodiment, mainly showing the locking member;

5 is an enlarged schematic diagram of a part of the structure of the second embodiment, mainly showing the card block;

FIG. 6 is an enlarged schematic view of a part of the structure of the third embodiment, mainly showing the universal tube.

Reference numerals: 1, frame; 11, indicator plate; 12, pointer; 13, control cabinet; 2, knitting mechanism; 21, needle cylinder; 22, knitting needle; 221, needle body; 222, needle latch; 223, Hook; 3, Auxiliary mechanism; 31, Air nozzle; 311, Laser light; 32, Slide rail; 33, Slide seat; 34, Roller; 341, Connecting rod; 342, Elastic part; 35, Air pipe; 36, Triangle seat; 361, yarn feeder; 4, positioning part; 41, gear; 411, handle; 42, motor; 5, universal tube; 6, detection component; 61, photoelectric sensor; 62, controller; 63, alarm light ; 7, locking piece; 71, clip; 72, bolt; 8, turntable; 81, block; 82, shaft.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings.

Embodiment 1: Referring to Figures 1 and 2, it is a circular knitting machine disclosed by the present invention, comprising a frame 1, a yarn supplying mechanism arranged on the frame 1, and a knitting machine arranged on the frame 1. Institution 2. The knitting mechanism 2 includes a needle cylinder 21 rotatably arranged on the frame 1 , a plurality of knitting needles 22 vertically slidably arranged on the needle cylinder 21 , and a driving member for driving the needle cylinder 21 to rotate. The driving member includes a driving motor that drives the needle cylinder 21 to rotate, and the driving motor and the frame 1 are fixed by screws and nuts. The needle cylinder 21 is circular, the knitting needles 22 are sheet-like, and the knitting needles 22 are divided into horizontal knitting needles 22 and vertical knitting needles 22. The horizontal knitting needles 22 are arranged horizontally, and the vertical knitting needles 22 are arranged vertically. . A plurality of knitting needles 22 are evenly spaced around the needle cylinder 21 . The knitting needles 22 are slidably connected to the needle cylinder 21 . The top of the needle body 221 is provided with a hook 223 . The hook 223 of the horizontal knitting needle 22 is opposite to the hook 223 of the vertical knitting needle 22. The opening edge of the hook 223 is hinged with a latch 222, and the latch 222 and the opening of the hook 223 have the same width, so as to supply yarn. The yarn conveyed by the mechanism to the needle cylinder 21 is enclosed in the hook 223, and the yarn is knitted into a cloth by the knitting needle 22 that slides up and down, and the knitting process is completed.

2 and 3 , an auxiliary mechanism 3 is provided on the frame 1 , and the auxiliary mechanism 3 includes a gas nozzle 31 connected to the frame 1 , an air pipe 35 communicating with the gas nozzle 31 , and a positioning component connected to the gas nozzle 31 . 4. The air nozzle 31 is in the shape of a cylinder, the open end of the air nozzle 31 is opposite to the needle tongue 222 of the knitting needle 22, and the end of the air nozzle 31 away from the frame 1 is sealed with the air delivery pipe 35, and the air delivery pipe 35 is provided with a solenoid valve ( Not shown in the figure), so as to control the on-off of the gas. A control cabinet 13 is welded and fixed on one side of the frame 1, and a contact switch (not shown in the figure) is installed on the top of the control cabinet 13. The contact switch is electrically connected with the solenoid valve to control the action of the solenoid valve. The contact switch adopts YT-1212-112A type key switch. The YT-1212-112A type key switch has high sensitivity, so as to quickly switch the gas on and off, reduce the waste of high-pressure gas, and reduce the carrying load of the gas generating device.

The frame 1 is provided with an annular slide rail 32 along its circumferential direction. The slide rail 32 is provided with an annular groove along its circumferential direction, and the annular groove is annular. The gas nozzle 31 is provided with a sliding seat 33, the gas nozzle 31 and the sliding seat 33 are welded and fixed, the sliding seat 33 is L-shaped, and the bottom of the sliding seat 33 is rotatably connected with a roller 34 through a bearing, and the roller 34 is embedded in the ring groove and is connected with the ring. The groove bottom surface is rolling connection. The air nozzle 31 and the sliding seat 33 are used for the sliding seat 33 to slide, and the sliding seat 33 is rotatably connected with a roller 34 , and the roller 34 is connected with the sliding rail 32 in a rolling connection. The sliding rail 32 and the central axis of the needle cylinder 21 are coincident with each other, and the roller 34 is used to reduce the sliding resistance of the sliding seat 33 and the sliding rail 32 , so that the operator can move the sliding seat 33 and the air nozzle 31 conveniently.

A triangular seat 36 is fixed on the frame 1 by screws and nuts. The triangular seat 36 is in the shape of a rectangular parallelepiped. Two circular yarn feeders 361 are spaced apart on the triangular seat 36. The yarn feeders 361 are opposite to the knitting needles 22. Guide the yarn. A laser light 311 is welded and fixed on the air nozzle of the air nozzle 31 , and the light direction of the laser light 311 is consistent with the air injection direction of the air nozzle 31 . When the air nozzle 31 is aligned with the knitting needle 22, the air nozzle 31 is rotated so that the beam of the laser light 311 is opposite to the knitting needle 22, thereby improving the accuracy of the alignment of the air jet direction and improving the working efficiency of thread continuation.

A connecting rod 341 is rotatably connected to the sliding seat 33 , and the roller 34 is rotatably connected to the end of the connecting rod 341 away from the sliding seat 33 . An elastic member 342 is provided at the rotation of the sliding seat 33 and the connecting rod 341, and the two ends of the elastic member 342 are respectively connected to the sliding seat 33 and the connecting rod 341. 341 is close to the bottom surface of the ring groove under the action of elastic force, and cooperates with the gear 41 to clamp the slide rail 32, so as to improve the stability of the slide seat 33. At the same time, the disassembly of the sliding seat 33 is facilitated by the rotation of the connecting rod 341 .

The frame 1 is provided with a detection assembly 6, and the detection assembly 6 includes a photoelectric sensor 61 opposite to the yarn on one side of the knitting needle 22, a controller 62 electrically connected to the photoelectric sensor 61, and an alarm light electrically connected to the controller 62 63. The photoelectric sensor 61 and the frame 1 are fixed by screws and nuts. The photoelectric sensor 61 adopts the DR18 circular photoelectric sensor 61. The DR18 circular photoelectric sensor 61 has high detection accuracy, and detects the presence or absence of the yarn by infrared rays. fracture.

When the yarn is broken, the photoelectric sensor 61 feeds back an electrical signal to the controller 62, and the controller 62 controls the alarm light 63 to light up, so as to facilitate the operator to find the position of the broken thread in time and perform the operation to continue the thread, and shorten the time to find the broken position. time and improve the work efficiency of continuous line. The controller 62 adopts the JDUPAL-C tower type alarm light controller. The JDUPAL-C tower type alarm lamp controller has a fast response speed, so as to remind the operator of the disconnection situation in time. The alarm light 63 adopts STSG-0 alarm, which is convenient for the operator to find the disconnection position.

Gear teeth are arranged on the surface of the sliding rail 32 , and the gear teeth are distributed along the circumferential direction of the sliding rail 32 . The output shaft of the motor 42 is fixed coaxially with the gear 41 , a handle 411 is rotatably connected to the eccentric part of the gear 41 , and the handle 411 is cylindrical. The handle 411 is used to manually adjust the position of the air nozzle 31 to improve the accuracy of the orientation of the air nozzle 31 , so as to quickly open the latch 222 of the knitting needle 22 .

4, the sliding seat 33 is provided with a locking member 7, the locking member 7 includes a clip 71 rotatably connected with the sliding seat 33, and a bolt 72 threadedly connected to the sliding seat 33 through the clip 71, the clip 71 is a thin film The cross section is V-shaped, and an anti-skid layer (not shown in the figure) is provided on the side of the clip 71 opposite to the roller 34 . When the bolt 72 rotates, the clip 71 is driven close to the roller 34, and the anti-skid layer is in contact with the roller 34, so that the movement of the roller 34 is blocked, thereby locking the roller 34 and preventing the air nozzle 31 from loosening after positioning and affecting the accuracy of the airflow direction. The anti-skid layer is made of rubber, and the friction coefficient of the rubber surface is large, so as to increase the locking effect of the anti-skid layer.

The implementation principle of this embodiment is as follows: the operator only needs to pass the spliced yarn through the yarn feeder 361 on the triangular seat 36 to continue splicing the yarn. After the connection is completed, turn on the motor 42 to move the sliding seat 33 along the slide rail 32 to the relative position of the corresponding knitting needle 22 , and then adjust the position by turning the handle 411 so that the air nozzle 31 is opposite to the latch 222 of the knitting needle 22 . The air pipe 35 delivers high-pressure air to the air nozzle 31 , and the needle tongue 222 is pushed open by the air flow, so as to facilitate the continuous yarn to enter the hook 223 . At this time, the needle cylinder 21 rotates and rotates once, so that the latches 222 of all the knitting needles 22 in the needle cylinder 21 are fully opened, and then the knitting mechanism 2 is operated. Thus, the knitting process is continued.

Embodiment 2: Referring to FIG. 5 , a knitting circular weft knitting machine differs from Embodiment 1 in that there are multiple air nozzles 31 , and each air nozzle 31 corresponds to a plurality of knitting needles 22 respectively. The air nozzle 31 and the frame 1 are rotatably connected with the frame 1. The frame 1 is provided with an indicator plate 11, the indicator plate 11 is fan-shaped, and the indicator plate 11 is provided with a scale, which corresponds to each knitting needle 22 one-to-one. The air nozzle 31 A pointer 12 pointing to the scale is fixed by welding.

The end of the air nozzle 31 away from the knitting needle 22 is provided with a turntable 8. The turntable 8 and the air nozzle 31 are welded and fixed, and the turntable 8 is cylindrical. A clamping block 81 is welded and fixed on the opposite side of the turntable 8 . The clamping block 81 is in the shape of a truncated cone. The outer diameter of the bottom of the clamping block 81 is larger than the inner diameter of the clamping slot. The rotary table 8 is welded and fixed on the bottom surface of the clamping groove. The clamping block 81 is slidably connected, and the clamping block 81 is engaged with the clamping slot. The turntable 8 is used to rotate the air nozzle 31. When the direction of the air nozzle 31 is calibrated, the turntable 8 is moved along the rotating shaft 82, so that the turntable 8 is inserted into the clamping block 81, so as to lock the turntable 8 and prevent the air flow vibration from shifting the turntable 8. This affects the opening of the latch 222 .

The implementation principle of this embodiment is: when the circular weft knitting machine is broken, rotate the air nozzle 31 corresponding to the position of the broken thread area, so that the air nozzle 31 is opposite to the tongue 222 of the knitting needle 22, which is convenient The direction of the air jet of the air nozzle 31 is changed, and the needle latch 222 is opened by the air flow. The rotating arrangement of the air nozzle 31 expands the working range of the continuous line of the air nozzle 31, reduces the number of air nozzles 31 used, and reduces the cost.

Embodiment 3: Referring to FIG. 6 , a circular weft knitting machine for knitting, the difference between it and Embodiment 2 is: the frame 1 is provided with a universal tube 5, and the universal tube 5 adopts a steel spherical universal tube, In this way, the connection strength of the universal tube 5 is ensured, and the service life of the universal tube 5 is prolonged. One end of the universal pipe 5 is welded and fixed with the frame 1 , and the other end is welded and fixed with the gas nozzle 31 , and the gas transmission pipe 35 is sleeved on the universal pipe 5 . The gas transmission pipe 35 is sleeved on the universal pipe 5, so as to facilitate the combing of the gas transmission pipe 35 and avoid the abrasion of the gas transmission pipe 35 with the ground or equipment.

The implementation principle of this embodiment is as follows: the universal tube 5 has good ductility, which facilitates adjusting the direction of the gas nozzle 31, and at the same time, it is convenient to change the position of the gas nozzle 31, so as to expand the working range of the gas nozzle 31. 31 When the universal tube 5 is moved away, the working space for the operator to continue the yarn is enlarged, which is convenient for the operator to continue the yarn.

In the above solution, the air nozzle 31 sprays air to open the latch 222 of the knitting needle 22, so that the hook 223 of the knitting needle 22 can hook the continuous yarn during operation, thereby knitting and improving work efficiency.

The embodiments of this specific embodiment are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore: all equivalent changes made according to the structure, shape and principle of the present invention should be covered in within the protection scope of the present invention.

Claims (9)

1. A circular weft knitting machine characterized in that: including frame (1), the confession yarn mechanism of setting in frame (1) to and set up knitting mechanism (2) in frame (1), knitting mechanism (2) is including rotating cylinder (21) that sets up in frame (1), a plurality of vertical knitting needles (22) that slide and set up on cylinder (21), and drive cylinder (21) pivoted driving piece, knitting needle (22) divide into horizontal knitting needle (22) and vertical knitting needle (22), horizontal knitting needle (22) level sets up, vertical knitting needle (22) vertical setting, be provided with complementary unit (3) on frame (1), complementary unit (3) include air cock (31) be connected with frame (1), air pipe (35) that communicate with air cock (31), and positioning element (4) be connected with air cock (31), air cock (31) and the latch (222) of knitting needle (22) lean on one side of crotch (223) relative, be provided with slide (33) on air cock (31), be provided with slide rail (32) that supply slide (33) to slide along its circumference on frame (1), it is connected with gyro wheel (34) to rotate on slide (33), gyro wheel (34) and slide rail (32) roll connection.

2. A circular weft knitting machine according to claim 1, characterized in that: the annular has been seted up along slide rail (32) circumference in one side of keeping away from gear (41) on slide rail (32), gyro wheel (34) and ring groove bottom surface roll connection, it is connected with connecting rod (341) and rotates the department and is provided with elastic component (342) to rotate on slide (33), and slide (33) and connecting rod (341) are connected respectively to the both ends of elastic component (342), the one end rotation connection of slide (33) is kept away from with connecting rod (341) in gyro wheel (34).

3. A circular weft knitting machine according to claim 1, characterized in that: be provided with locking piece (7) on slide (33), locking piece (7) include with slide (33) rotation connection's clamping piece (71) to and pass clamping piece (71) and slide (33) threaded connection's bolt (72), the one side relative with gyro wheel (34) is provided with the skid resistant course on clamping piece (71).

4. A circular weft knitting machine according to claim 1, characterized in that: the slide rail (32) are provided with the teeth of a cogwheel on the surface, locating component (4) including with teeth of a cogwheel meshing be connected gear (41), set up motor (42) on slide (33), the output shaft and the gear (41) of motor (42) are coaxial fixed, gear (41) eccentric department is connected with handle (411).

5. A circular weft knitting machine according to claim 1, characterized in that: and a laser lamp (311) is arranged on the air nozzle of the air tap (31).

6. A circular weft knitting machine according to claim 1, characterized in that: the knitting machine is characterized in that a detection assembly (6) is arranged on the frame (1), and the detection assembly (6) comprises a photoelectric sensor (61) opposite to yarn on one side of the knitting needle (22), a controller (62) electrically connected with the photoelectric sensor (61), and an alarm lamp (63) electrically connected with the controller (62).

7. A circular weft knitting machine according to claim 1, characterized in that: air cock (31) rotate with frame (1) and are connected, be provided with indicator panel (11) on frame (1), be provided with the scale on indicator panel (11), be provided with pointer (12) to the scale on air cock (31).

8. A circular weft knitting machine according to claim 7, characterized in that: the one end that knitting needle (22) was kept away from in air cock (31) is provided with carousel (8), carousel (8) bottom is provided with the draw-in groove, fixture block (81) have been seted up with carousel (8) opposite side in frame (1), it is fixed with pivot (82) to lie in the draw-in groove bottom surface on carousel (8), pivot (82) penetrate in fixture block (81) and slide with fixture block (81) and rotate and be connected, fixture block (81) and draw-in groove joint cooperation.

9. A circular weft knitting machine according to claim 1, characterized in that: the air faucet (31) is connected with a universal pipe (5), the universal pipe (5) is connected with the rack (1), and the air conveying pipe (35) is sleeved on the universal pipe (5).

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